I think you'll find that at higher difficulties you're better off hitting both buttons each time anyway, because you'll be rapidly switching between different inputs. At lower difficulties you get a bunch of those two-button things in a row so it's tempting to hold one button, but it doesn't stay that way. It's actually a bad habit to be in.

I played the demo again since I realized I still had it. I finally got used to the gameplay in it and cleared all the stages on the lowest difficulty, which took me about a half hour. I gotta say, this game is fun, but I really can't stand Miku's voice. Everyone else is fine, but Miku's sounds way too artificial and it drives me crazy. At least when I get in the zone I don't notice it.

Vocaloid voices actually change a lot depending on how the composer tunes them. Miku can sound really good in the right hands. And don't forget that some composers intentionally play up the artificial aspect. Which songs have you been playing? I forget what's actually in the demo...

It's actually the Kagamines that bother me. I don't care for their voices at all...

Megurine Luka sounds awful in every song I've done.It's even worst in her room.

I actually really like Luka's voice...in some songs. I don't think the selection of Luka songs in F is that great, though. There were some good ones in earlier games (like Double Lariat, which is actually the song I blame for me getting into Vocaloid music in the first place...).

Well, you have to understand that Meiko is old. In fact, she's the first Vocaloid Crypton ever made. She's built on the original Vocaloid 1 engine, along with Kaito. The rest are using Vocaloid 2, which was a pretty major improvement.

I'll admit that one was the best I've heard out of her, but it's still grating at points. I'm not just talking about the games either, I've listened to quite a bit of Vocaloid music, and I never seem to like Miku's voice in any of them.

The Weekender Girl is the song that features her in the demo, btw. (Coincidentally, I did that one last, and still did the worst out of any of the songs...) The other two sound great, though.